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Investigations of the Formation and Oxidation of Soot Inside a Direct Injection Spark Ignition Engine Using Advanced Laser-Techniques
Technical Paper
2010-01-0352
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this work the formation and oxidation of soot inside a direct injection spark ignition engine at different injection and ignition timing was investigated. In order to get two-dimensional data during the expansion stroke, the RAYLIX-technique was applied in the combustion chamber of an optical accessible single cylinder engine. This technique is a combination of Rayleigh-scattering, laser-induced incandescence (LII) and extinction which enables simultaneous measurements of temporally and spatially resolved soot concentration, mean particle radii and number densities. These first investigations show that the most important source for soot formation during combustion are pool fires, i.e. liquid fuel burning on the top of the piston. These pool fires were observed under almost all experimental conditions.
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Authors
- Amin Velji - Karlsruhe Institute for Technology
- Kitae Yeom - Karlsruhe Institute for Technology
- Uwe Wagner - Karlsruhe Institute for Technology
- Ulrich Spicher - Karlsruhe Institute for Technology
- Martin Rossbach - Karlsruhe Institute for Technology
- Rainer Suntz - Karlsruhe Institute for Technology
- Henning Bockhorn - Karlsruhe Institute for Technology
Topic
Citation
Velji, A., Yeom, K., Wagner, U., Spicher, U. et al., "Investigations of the Formation and Oxidation of Soot Inside a Direct Injection Spark Ignition Engine Using Advanced Laser-Techniques," SAE Technical Paper 2010-01-0352, 2010, https://doi.org/10.4271/2010-01-0352.Also In
SI Combustion and Direct Injection SI Engine Technology, 2010
Number: SP-2278; Published: 2010-04-13
Number: SP-2278; Published: 2010-04-13
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